System: 6x12v 130AH FLA batteries, parallel.
4/0 x 6 1ft cables
1 400A ANL fuse (to inverter)
6 x 100W 5-18v Monocrystalline PV panels
1 60A MPPT makeskyblue MPPT controller
1 4Kw(8kwPeak) Sine Wave inverter.
I have pretty much covered all the info and material I (believe I) need, and now working from battery bank up.
I have a MakeSkyBlue 60A MPPT controller. As yet untested.
Instructions recommend using 2 9AWG for each terminal (4 for 2 pos/negs) on input and output (8 wires w/o the additional 5A DC out connection).
It also recommends 100A double throw breakers for input and output.
First issue: I cannot seem to source 9awg in copper. 8awg can fit, but tight. Ordered 50 ft of it at least for initial testing. Are there any issues with using this gauge wire if I can.
Second issue: Since 2 wires are used in place of 1 - I am thinking of using 3-1 MC2 connectors and using 2 sets of 3 panels in parallel, and use the resultant 2 positive wires to the controller as the 2 poles of a 50A DPDT type (dual pole) breaker. I was wondering if I can use the breaker as a switch. In reality I would only be using this setup as emergency backup, so wear woud be minimal by manual switching of breaker.
Third issue: Can I do the same from controller to batteries?
Can anyone recommend a good source/brand of these type of breakers at a hopefully reasonable price. If switches are needed can knife switches be used?
I would like to be able to wire (8AWG) with lugs the breakers, instead if using a panel/busbar setup type. As mentioned at least for now I want the system to be very basic but reasonably safe. I may have need for 12v at high capacity for other applications, hence the 12v parallel setup, and heaviest AWG I can handle.
4/0 x 6 1ft cables
1 400A ANL fuse (to inverter)
6 x 100W 5-18v Monocrystalline PV panels
1 60A MPPT makeskyblue MPPT controller
1 4Kw(8kwPeak) Sine Wave inverter.
I have pretty much covered all the info and material I (believe I) need, and now working from battery bank up.
I have a MakeSkyBlue 60A MPPT controller. As yet untested.
Instructions recommend using 2 9AWG for each terminal (4 for 2 pos/negs) on input and output (8 wires w/o the additional 5A DC out connection).
It also recommends 100A double throw breakers for input and output.
First issue: I cannot seem to source 9awg in copper. 8awg can fit, but tight. Ordered 50 ft of it at least for initial testing. Are there any issues with using this gauge wire if I can.
Second issue: Since 2 wires are used in place of 1 - I am thinking of using 3-1 MC2 connectors and using 2 sets of 3 panels in parallel, and use the resultant 2 positive wires to the controller as the 2 poles of a 50A DPDT type (dual pole) breaker. I was wondering if I can use the breaker as a switch. In reality I would only be using this setup as emergency backup, so wear woud be minimal by manual switching of breaker.
Third issue: Can I do the same from controller to batteries?
Can anyone recommend a good source/brand of these type of breakers at a hopefully reasonable price. If switches are needed can knife switches be used?
I would like to be able to wire (8AWG) with lugs the breakers, instead if using a panel/busbar setup type. As mentioned at least for now I want the system to be very basic but reasonably safe. I may have need for 12v at high capacity for other applications, hence the 12v parallel setup, and heaviest AWG I can handle.